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Effect of the specific heat ratio on the stability and laminar-turbulent transition of a supersonic boundary layer

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Abstract

At high supersonic velocities the specific heat ratio γ of the flow impinging on a body may change in connection with the considerable increase in stagnation temperature and chemical reactions (strictly speaking, in this case the flow can be described by means of the perfect gas model with an “effective” specific heat ratio γef; as a rule, γgf<γ). This may entail a change in the point of laminar-tubulent boundary layer transition on the model. This paper is concerned with the determination of the effect of the specific heat ratio on boundary layer transition.

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Authors and Affiliations

  1. Novosibirsk

    V. I. Lysenko

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  1. V. I. Lysenko
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 2, pp. 179–183, March–April, 1989.

The author wishes to thank M. I. Yaroslavtsev and V. A. Dmitriev for assisting with the experiments.

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Lysenko, V.I. Effect of the specific heat ratio on the stability and laminar-turbulent transition of a supersonic boundary layer. Fluid Dyn 24, 317–321 (1989). https://doi.org/10.1007/BF01075167

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  • DOI: https://doi.org/10.1007/BF01075167

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